Nausea, Dizziness, Flu?

Been feeling really nauseous the past few days. for 2 of them it was only in the evenings but today i've been nausous all morning since late afternoon yesterday. there was a bit of dizziness yesterday and today i'm feeling kind of out of it. i'm not exactly sure. i feel like i have a lump in my throat from the nausea. last night i also felt pain under my left breast but i don't know what that could be. i thought heart burn but it didn't feel right.
i had my period about 2 weeks ago so i should be ovulating soon but i've never had any of these symptoms around ovulation time before.